A-GX21694 Lock Nut, Blade Mounting; 5/8 model-SK230SRLC-3 Fits Massey Ferguson 300 Series:

Fits Massey Ferguson 300 Series: 30D

The disc seats in the clutch pack assembly and is a direct replacement for OEM part numbers RE30210

666 (w/ D312 6-Cylinder Diesel Engine)

Troy-Bilt Models: 19A126

835615M92-R

A-GX21694 Lock Nut, Blade Mounting; 5/8 model-SK230SRLC-3 Fits Massey Ferguson 300 Series:One New Aftermarket Replacement Blade Mounting Lock Nut Fits John Deere Lawn and Garden Tractors This 5 8 inch blade mounting lock nut secures mower blades to the spindle shaft on Fits John Deere (Fits JD) lawn and garden tractors. The nylon insert Type E locking element resists loosening caused by vibration and dynamic loads during mowing, keeping blades firmly seated for safe, consistent cutting performance. Replaces OEM part numbers GX21694 and A